Source code for taurus.qt.qtgui.container.taurusscrollarea

#!/usr/bin/env python

#############################################################################
##
# This file is part of Taurus
##
# http://taurus-scada.org
##
# Copyright 2011 CELLS / ALBA Synchrotron, Bellaterra, Spain
##
# Taurus is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
##
# Taurus is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Lesser General Public License for more details.
##
# You should have received a copy of the GNU Lesser General Public License
# along with Taurus.  If not, see <http://www.gnu.org/licenses/>.
##
#############################################################################

"""This module provides basic taurus scroll area widget"""

from __future__ import absolute_import

from taurus.external.qt import Qt
from taurus.qt.qtgui.base import TaurusBaseComponent
from .taurusbasecontainer import TaurusBaseContainer


__all__ = ["TaurusScrollArea"]

__docformat__ = 'restructuredtext'


[docs]class TaurusScrollArea(Qt.QScrollArea, TaurusBaseContainer): """This is a Qt.QScrollArea that additionally accepts a model property. This type of taurus container classes are specially useful if you define a parent taurus model to them and set all contained taurus widgets to use parent model. Example:: from taurus.qt.qtgui.container import * from taurus.qt.qtgui.display import * widget = TaurusScrollArea() layout = Qt.QVBoxLayout() widget.setLayout(layout) widget.model = 'sys/database/2' stateWidget = TaurusLabel() layout.addWidget(stateWidget) stateWidget.model = 'sys/database/2/state'""" modelChanged = Qt.pyqtSignal('const QString &') def __init__(self, parent=None, designMode=False): name = self.__class__.__name__ self.call__init__wo_kw(Qt.QScrollArea, parent) self.call__init__(TaurusBaseContainer, name, designMode=designMode) #-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~- # Pending operations related methods #-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-
[docs] def getPendingOperations(self): widget = self.widget() if isinstance(widget, TaurusBaseComponent): return widget.getPendingOperations() return []
[docs] def resetPendingOperations(self): self.debug("Reset changes") widget = self.widget() if isinstance(widget, TaurusBaseComponent): widget.resetPendingOperations()
[docs] def hasPendingOperations(self): widget = self.widget() if isinstance(widget, TaurusBaseComponent): return widget.hasPendingOperations() return False
#-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~- # Public slots for apply/restore changes #-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~- @Qt.pyqtSlot()
[docs] def applyPendingChanges(self): self.applyPendingOperations()
@Qt.pyqtSlot()
[docs] def resetPendingChanges(self): self.resetPendingOperations()
@classmethod
[docs] def getQtDesignerPluginInfo(cls): ret = TaurusBaseContainer.getQtDesignerPluginInfo() if cls is TaurusScrollArea: ret['module'] = 'taurus.qt.qtgui.container' ret['group'] = 'Taurus Containers' ret['icon'] = "designer:scrollarea.png" ret['container'] = True return ret
#-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~- # QT properties #-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~- model = Qt.pyqtProperty("QString", TaurusBaseContainer.getModel, TaurusBaseContainer.setModel, TaurusBaseContainer.resetModel) useParentModel = Qt.pyqtProperty("bool", TaurusBaseContainer.getUseParentModel, TaurusBaseContainer.setUseParentModel, TaurusBaseContainer.resetUseParentModel) showQuality = Qt.pyqtProperty("bool", TaurusBaseContainer.getShowQuality, TaurusBaseContainer.setShowQuality, TaurusBaseContainer.resetShowQuality)
def demo(): "Scroll area" w = Qt.QWidget() w.setWindowTitle(Qt.QApplication.instance().applicationName()) layout = Qt.QGridLayout() layout.setContentsMargins(0, 0, 0, 0) w.setLayout(layout) groupbox = TaurusScrollArea() groupbox.model = "sys/tg_test/1" layout.addWidget(groupbox) layout = Qt.QFormLayout() groupbox.setLayout(layout) import taurus.qt.qtgui.display state_led = taurus.qt.qtgui.display.TaurusLed() state_led.model = groupbox.model + "/state" status_label = taurus.qt.qtgui.display.TaurusLabel() status_label.model = groupbox.model + "/status" double_scalar_label = taurus.qt.qtgui.display.TaurusLabel() double_scalar_label.model = groupbox.model + "/double_scalar" layout.addRow("State:", state_led) layout.addRow("Status:", status_label) layout.addRow("Double scalar:", double_scalar_label) w.show() return w def main(): import sys import taurus.qt.qtgui.application Application = taurus.qt.qtgui.application.TaurusApplication app = Application.instance() owns_app = app is None if owns_app: import taurus.core.util.argparse parser = taurus.core.util.argparse.get_taurus_parser() parser.usage = "%prog [options] <full_device_name(s)>" app = Application(sys.argv, cmd_line_parser=parser, app_name="Taurus frame demo", app_version="1.0", org_domain="Taurus", org_name="Tango community") args = app.get_command_line_args() if len(args) == 0: w = demo() else: models = map(str.lower, args) w = Qt.QWidget() w.setWindowTitle(app.applicationName()) layout = Qt.QGridLayout() w.setLayout(layout) for model in models: groupbox = TaurusScrollArea() groupbox.model = model layout.addWidget(groupbox) w.show() if owns_app: sys.exit(app.exec_()) else: return w if __name__ == '__main__': main()